MRI and CT scan in Ophthalmology

MRI means Magnetic Resonance Imaging, potentially used in all departments of medical sciences but in ophthalmology, MRI is a savior for eyes. It is a great tool at the hands of ophthalmologist- typical cases where MRI has become order of the day in Ophthalmology setting.
 
Situation 1: MRI and Malignancy
Any lid swellings or abnormal lid shape, size or mass that can be a benign/malignant tumor

Situation 2: MRI and Distortion
 Any mass inside orbit that is causing protruding out of eyeball or distorted location of eyeball

Situation 3: MRI and Impinging
Disorders of optic nerve, when we are suspecting optic nerve tumor or any tumor of orbit impinging on optic nerve

Situation 4: MRI and Assessment
MRI brain needed if any tumor in occipital or temporal lobes of brain is suspected that is causing visual problems

Situation 5: MRI and Ruling Out
Suspected optic neuritis

Situation 6: MRI and Spread
To see severity of spread of tumors of eye like retinoblastoma to decide further plan of management

CT scan is predecessor of MRI. Hence for Ophthalmologist CT scans are not new. There are several conditions where CT scan is used in ophthalmology.

Situation 1: CT and Timing
Any orbital trauma cases

Situation 2: CT and Differential Density
 In case of entry of foreign object inside eye or orbit

Situation 3: CT and Gap
 If impingement of optic nerve by bone fragments post orbital wall fracture is suspected

Situation 4: CT and Flow
 CT venography for suspected cavernous sinus thrombosis

Situation 5: CT and Obstruction
To see calcification in eye or around eye